Four Arithmetic Operations of Fuzzy Number by Method of Intersection Point or Discontinuity Point;

This paper introduced four arithmetic operations of number sets.

Based on universal grey number four arithmetic operations, this paper puts forward a method of intervals number standard expression and discuss the intrinsic relation and application of standard intervals number four arithmetic operations and universal grey number.

According to this system, the paper shows the algorithm that can generate the graph example of the four regular graph with any number of vertices and determines its bipolar orientation and bipolar numbering, and draws its rectilinear embedding graph.

These algorithms have improved on the resultand realized the operations of four fundamental operations with any bits,which can be extended to other programming languages.

The article defines order-preserving transform of bounded monotone functions on the symmetric interval [-1,1],and applies the methods of fuzzy structured element,the expression forms and correspondent membership of the four fundamental operations of fuzzy numbers based on the fuzzy structured element is obtained.

The arithmetic operation of the general interval numbers has wideapplications.

It is given the demonstration that using the definitional method demonstrate binary function s arithmetic operation and compound operation of differential calcultus.